Shazam is an application that can identify music, movies, advertising, and television shows, based on a short sample played and using the microphone on the device. It was created by London-based Shazam Entertainment, and has been owned by Apple Inc. since 2018.
I feel like this app is useless, you can just ask siri, alexa, or google what the song is called, why bother installing this app just for it to steal space in your phone. Don't waste your storage on this app, you don't need it.